Ray-tracing studies

• Summary table lists the rms width of the distributions on the TOF (in mrad).

• Uncertainties in the reconstructed ? and p dominate the ray tracing.

? p ms

?+ 4.1 10.5 1.5

?- 6.8 6.9 4.7

K+ 4.1 10.5 1.6

K- 6.8 6.9 1.0

p+ 4.1 10.5 3.6

p- 6.8 6.9 11.2

@ 50° and 0.8 GeV/c

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